425780761 has 16 divisors (see below), whose sum is σ = 511200000. Its totient is φ = 346724928.

The previous prime is 425780743. The next prime is 425780783. The reversal of 425780761 is 167087524.

It is a cyclic number.

It is not a de Polignac number, because 425780761 - 2¹¹ = 425778713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425780731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15115 + ... + 32863.

It is an arithmetic number, because the mean of its divisors is an integer number (31950000).

Almost surely, 2^425780761 is an apocalyptic number.

It is an amenable number.

425780761 is a deficient number, since it is larger than the sum of its proper divisors (85419239).

425780761 is a wasteful number, since it uses less digits than its factorization.

425780761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17928.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 425780761 is about 20634.4556749142. The cubic root of 425780761 is about 752.3074188480.

The spelling of 425780761 in words is "four hundred twenty-five million, seven hundred eighty thousand, seven hundred sixty-one".